fix(coverage-istanbul): clear coverage map after use

- Fixes issues where statement counts were duplicated
vitest-dev · Dec 9, 2022 · 4db5786 · 4db5786
1 parent e66cbec
commit 4db5786
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/packages/coverage-istanbul/src/index.ts b/packages/coverage-istanbul/src/index.ts
@@ -7,5 +7,11 @@ export async function getProvider() {
 
 export function takeCoverage() {
   // @ts-expect-error -- untyped global
-  return globalThis[COVERAGE_STORE_KEY]
+  const coverage = globalThis[COVERAGE_STORE_KEY]
+
+  // Reset coverage map to prevent duplicate results if this is called twice in row
+  // @ts-expect-error -- untyped global
+  globalThis[COVERAGE_STORE_KEY] = {}
+
+  return coverage
 }